Assembling a computer

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Assembling a computer

  1. 1. Presentation onAssembling a ComputerPresenting By:Neeraj Dhiman
  2. 2. Safety Procedures Clean work area free of dust and food Never open a monitor Remove jewelry and watches Turn power off and remove power plug Fire extinguisher available Use anti static mat and wrist strap Hold cards by edges/avoid touching chips Put components on non conductive surface Do not use magnetized screw drivers
  3. 3. Electrostatic Discharge If you notice it, it’s at least 2000 volts Charge of 200 volts can damage components Keep all components in anti-static bags Humidity above 50% Use grounded mats (workbench and floor) Use wrist straps Periodically touch unpainted grounded metalcomputer parts to lower the body’s staticenergy
  4. 4. Keeping an Inventory Document all components, parts purchased Use an inventory checklist May be difficult to recall later Will be helpful in locating and downloadingdevice drivers Note specific warranty info Save specifics about installation andmaintenance requirements so warranties will bevalid Use small box to hold all manuals and disks Label box for specific computer Store in secure place
  5. 5. Choosing a computer case andsystem unit Case Allows easy access tointernal components Provides room for expansion ATX form factor Available desk top space LED indicators on front Dust filters if area wherecomputer to be used is dusty Power supply Minimum 250watts ATX Single 20 pin Fan pulls airthrough casefrom front toback
  6. 6. Preparing to installMotherboard Review the motherboard location map Configure the motherboard Install the CPU, heat sink and fan, RAM Connect power supply cables tomotherboard power connectors and misc.connectors to correct switches and lights Set the system BIOS
  7. 7. Configuring the processor Set jumper settingsfor appropriatefrequency Ensure the CPUused supports theBUS speed and theCPU clock speed ofMotherboard
  8. 8. Installing the CPU ZIF (Zero Insertion Force) trait on nearly all socket 7 andsimilar types Inspect pins for damage Locate pin 1 on both chip and socket Open the ZIF socket (raise lever) Insert processor (should easily slide on) Make sure there is not a gap between bottom of chip andsocket Push lever down Set CPU voltage jumper settings if necessary (Pentium IIand later CPU’s adjust automatically to voltage)
  9. 9. Install Heat Sink and Fan Attach fan to heat sink if not alreadyattached Apply thin layer of compound to chipsurface Attach heat sink by placing squarelyon top of processor and press downgently Bend clips in place to hold sink Make sure there is good contactbetween sink and Chip surface Wipe off any excess compound Plug power cord from fan to fanpower pins on motherboard
  10. 10. Install RAM Two types RAM used onmost PC’s DDR1 DDR2 Look at motherboard map todetermine which bank toplace DIMM 1 module in Orient the Dimm chip overthe slot (keyed) and insertinto slot Lock in place by closinglevers
  11. 11. Installing the Motherboard Position case for easy access, locate holes onmotherboard and corresponding holes on case Insert spacers that came with motherboard intoholes on case and install plastic standoffs into holeson motherboard Carefully slide the board into the case, lining upholes Tighten board to case with screws Verify that the back of the motherboard is nottouching the case, all slots and connectors line upproperly, board is securely held in place, and boarddoes not bend when pressed
  12. 12. Attaching LEDs, key lock andspeaker Use motherboard manual as a guide forproper placement Turbo LED (mainly legacy item) Power LED Hard drive activity LED Key lock switch (common with oldersystems, rare now; prevented BIOSmeddling) PC speaker
  13. 13. Connect power supply cables AT motherboard Locate two large wire leads from power supply(P8 and P9) Locate 12 pin power connector on motherboard Plug P8 and P9 into connector Be sure black wires are in the middle beside oneanother ATX motherboard Attach the connector that is keyed to fit only oneway into the motherboard connector
  14. 14. Attach hard drive and CD-ROM Use separate IDE cables if possible and set both jumpers toMaster (or single on the hard drive if available) If sharing an IDE cable, set the hard drive to Master and the CD-ROM to slave Install hard drive away from power supply which can act like amagnet and destroy data Keep hard drive near front of case to benefit from air drawn intocase and keep away from other hardware Slide drive into selected drive rail and screw drive into place Attach ribbon cable to the primary controller of the motherboardand attach power cord Follow with CD-ROM installation and attach to secondarycontroller of the motherboard
  15. 15. Installing a video card Use AGP expansion slot ifavailable, otherwise use PCI or ISA Remove slot insert and insertvideo card by aligning pins andgently applying pressure Secure to case with a screw Some motherboards have built-invideo. If you want to install anexternal card then you mustdisable the built in video in theCMOSAGP VIDEO CARD
  16. 16. Post Assembly Checklist All expansion cards are fully inserted CPU fan is attached to power The 110/220 volt switch is configured properly Drives are connected to power Ribbon cables are attached correctly Fans are free from interference from wires CPU voltage settings are correctly configured Power switch is off and power supply connectors areconnected properly to motherboard All connections are tight Pins are properly aligned Close the case before booting Connect keyboard, mouse and monitor and plug in AC power
  17. 17. Weve successfully assembleda computerTHANK YOUANY QUERY

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